A cobpokaocioir of new jeksby



Novps, 192s. y 1,690,258

- T. H. STRACHAN WEIGHING SCALE Filed Aug.1, 1925 17 Sheets-Sheet 1 a 50 77 56a Issa ivwewcoz my f Nov. 6, 1928.`

T. HLSTRACHAN WQIGHING SCALE` Filed Aug.1, 1925 17 Sheets-Sheet. 5

Nov. 6, 1928.

T. H. STRACHAN WEIGHING SCALE Filed ul, 1925 17 She@ts--ShqatV 5 Nov. 6, 192s.

T. H. sTRAc'l-{ANl WEIGHING -SGALE -File Aug. l, 1925 17 Sheets-Sheet 6 150 :5r :o: a@

$12313, @ila @25mm/@c4511 T. H. STRACHAN Nov. G, 1928.

WEIGHING SCALEv 17 'Sheets-Sheet 7 Filed Aug. 1, 1925 T. H. STRACHAN WEIGHING SCALE Filed ug. 1, 1925 17 Sheets-Sheet B MA @Homme/13a @swg Nov. 6, 1928. 1,690,258

f T. H. STRACHAN WEIGHING SCALE Filed Aug.1, 1925 17 Sheets-Sheet 9 Nov. 6', 1928.

.K ,690,258 T. H. STRACHAN WEIGHING SCALE" 17 sheets-sheet 1o Filed Aug. 1, I"192.5

alc

Nov. 6, v1928.

T. H. STRACHAN WEIGHING SCALEA Filed Aug.1, 1925 17 Sheets-Sheet .l1

vwewto .5 5513 @Morde/13,4

Nov. 6, 1928.

T. H.' STRACHAN WEIGHING SCALE Filed Aug.l, 1925 17 Sheets-Sheet l2 "Nov. 6, '1928.v

T. H. sTRAcHAN WEIGHING SCALE Filed Aug. 1, 1925 17 sheeissneef '513 invento? ,14, 12AM Nov. 6, 1928.

T. H. STRACHAN WEIGHING SCALE Filed Aggl. 1925 rzshe'is-sheet 1e Nov." 6, 1928.v `1,690,258

T. H; s-rRAcHAN WEIGHING SCALE Filed Aug, 1, 1925 17 Sheets-Sheet 17 mventoz 5 ing certain TENT .OFFIC rnonssn. ernennen, or neuron, onto, kAsistencia '.roinAY'ron scemi coureur, on

. nennen, onto, s consomation or new Jnnsny.

wnrennte seems.-

.lppiicetion filed August 1, 1925. -Seriel Eo. 47,472.

. In the weighing scaleart it is the usual practice,` to buiid up a scale in a cast iron i liousingwhich. is of such character that the housing lserves the duai purpose of supportof the-operating parts ot the mechanism and encasix'lg the same. Other 'housing parte such as drum covers and the like serve solely as coverings and are not intended to support the operetive'partsof the weighing mechanism. housings are `nished in e. variety of ways, for example, by painting in diiierent colors, enemeling or porcelaining it is necessary that .e manufacturer keep on hand 'e comparau tivel large stock of ses-les to supply the del man s which meyer-isc for -seriously finished. -.hous1ngs.

' Generally the objects of the invention in,-Llv

'clud'ej y'first the provisionof Weighing scale 29 of. such type .that the complete assembly testingenti sealing ot thescalemey he eected priorto the essenbly of theverioushousing parts thereon. In this method of manufacturetesting and sealing is facilitated'. Furc. stoclr of unhoused scales into compl-ite and .testedcondition. Then as cells corne for scnlesof diierent colors, appropriate housings may be assembled end placedinposition uponthe previously completed and tested scale. i The. present invention has :tor its further object the provision ofnovel .torxns of hous ings whichiney be readily assembled upon a, weighing scale mechanism which is complete in itself and in sealedcondition. A further object ot the present invention -f resides in the provision of novel 'forms'of housing for the base section, the pedestal.

or column section and the drum, section fot Ua. Vweighing scale. The housinnf partsv arcor such character thatl they may tbe readily esfsembled in position withthe scale assembly complete. f

Anothen object yof the present invention resides in the provision oi a construction which will permit elrger chart to be ern-l ploye'd than heretofore. This large chart `een beutilized for additional prices and in 50' this way the so-cnlled price'capacity ot the seule muy be greatly'increased over the seules now in general. use. Provisionis further inasmuch es thev thermore, the manufacturer may .build up4 mede whereby the large chart Willfunction properly and without excessive friction. .This improved chart operation and the minimiz- 56 ingof friction effects are secured by novel' methodsof support-ing the chart'` and by novel driving means therefor.

Other 'and more incidental objects 'of the present invention include thejprovision of 60 an improved thermostat support; the provision of an -ix'nproved dash-potoperating connection and' 'improved' location. thereof to ali'ord .ready access and assembly. the pro.

visionof anumproved support furthe level,v l

the provision of an improved zero adjust- :noemt for the scale, and the provision ofen improved .reading wire support and adjust# ing device therefor.

Other objectsof thepresent invention re 70" side in the provision of 'various details of construction' which 'improve' the operation of the scale` as a; whole 'and which also facilii 'tate'the manufacture of the saine.

Other yobjects of the present invent-ion will I5i be more 4ullyset forthin the accompanying.

kspecification 4and claims 'and shownfin the drawings which by way of illustration show a preferred embodiment ofthe invention.

ln the drawings, 1 Fig-..1 .is a pers ective View of the complete scalewith the ousjng assembly thereon. y Fig. Q-is e side elevational view of the operating mechanism ofthe scale andthe frame. work with the housing parts removed to show 85 'the interior construction. e

pedestal or columnl sectionjof the m'achine.-

The view is taken on' line 6-6 of Fig. 3 look?A ing inthe ,direction'f the arrows and particularly .shows the removable lpart of' the freine whichg'when removed, permits the re- 10o moval of the check and other parts' of the weighing mechanism.

n Fig. is a, vertical sectional view of th parts adjacent the end of the weighing drum. This view is taken online 7-'7 of Fig. 8.-

Fig. 8 is an end view of the'weighing drum This view is substantially an enlarged detail view of the drum shown at the top ofI Fig. 2 with all parts included and shown on a larger scale.

Fig. 9 is a vertical sectional'view of the ball bearing and thrust bearing for the weighing duim together with the driving pinion. This section is taken on lines 9--9 of Fig. 8.

Figs. 10, 1l and 12 are detail views'of the! parts used for supporting the reading wire which permit various adjustments of the same.'

Fig. 10 is an end view taken on lines 10- l() of Fig. 8.' v

Fig. 1l is a top view taken siibstantialiy on lines' 11-11 of Fig. 8.

Fig. 12 is a perspective view with the parts in dotted line position showing the reading wire displaced to a different position of advjustinent.

Fig. is a side view of the zero adjustment device for variahly connecting the draft 1 rod and the ei ualizer.

Fig. 14 is a ront view of the same parts.

Fig. l5 is a front enlarged view of the connecting parts intermediate the equalizerl and the main scale lever.

Fig. 16 isa side elevational view of these parts together with lever stop pin.

Fig. 17 is a view partly in sectionof the iiiiiin scale lever. This view is taken substantially on lines 17--17 of Fig. 4.

Fig. 18 is a transverse sectional view of the column or pedestal section ofthe machine i i showing the location of the dash ot and of dine 4040of Fig. 26.

the level. This section is taken su stantially on lines 18--18 of Fig. looking'in the direction of the arrow.

Fig. 19 shows the manner in which the bearing frame and vertical check column may be removed or placed in position in the scale assembly.

Fig. 2O is an enlarged detail view of the equalizer and its driving connections to the rack and pinion.

F ig. 2l is a sectional view showing on o. large scale the driving inioii with cooperative-rack and associatei parts in horizontal section, andis taken on line 21-21 of Fig. 8.

Fig. 22 is a. sectional view of the fasteiiings the drum section and is taken on line 22-- #22 oi' Fig. Ei

Fig. is a front view of the pedestal scction of the `machine with the hase casting showing in section.

Fig. is aview which is iii parta side and in part a sectional view of the part shown in Fig. 23. T he section takcii'on lines S24-24:-

Uf Fig. 23.

Fig. 25 is @Side view of the compiere `:ile with housing parts in place.

Fig. 26 is a. front view of the scale with casings .thomann ,partly broken away.

showing the steps taken to assemble the base Fig. '27 is a perspective view of the complete weighing scale mechanism assembly complete and in sealed condition ready for the reception of the various casing parts.

Fig. 28 is a perspective view of the so-called roach cover or bottom plate which covers the bottom of the frame.

Fig. 29 is a perspective view of the base housing.

Fig. 30 is a. perspective view of the base cover.

Fig. 31 is a perspective view of the platter.

Fi 82 and 33 are diagrammatic views housing in -position on tlieweighingV mechanism assembly. y

Fig. 34 shows the steps'of assembling various casing'parts to the frame of the mechanism.

Fig. 35 is a detail sectional view showing the'inter-relation of the topccver, the end rings or covers and the end frame castings. The section is taken online 85--35 of Fig. 25.

Figs. 36 and 37 are detail'sectional views taken respectively on lines' 36-36 and 3 7--37 of Fig. 35.,

Fig. 3 8 is a detail part section view taken on line 38-38 of Fig. 26 showing the interrelation of the top cover and the druml casing'` parts.

ig. 39 end of the drum and showing the inter-relation of the drum covers and t eir cooperatin parts during and after assembly, the en covers being removed. 1

Fig. 40 is a detail sectional view taken on f Fig. 41 is a detail sectional vievil taken on line 41---41l of Fig. 40.

Fig. 42 is an enlarged detail view which shows'the inter-relation and method of fasg toning the base cover, the base housing and roach cover to the frame parte.

Fig. 43 is a transversesectional view of certain cover parts. The section is taken on line43-43 of Fig.

Fig. 44 shows a detail sectional View of certain cover parts and fastenings. The section is taken on line 44--44 of Fig. 26.

Fig. 45 is a vertical sectional view of other parts shown ln elevation on Fig. 26. The section is taken on line 45-45 of that figure.

Fig. 46 is a sectional view taken on line 46-46 of Fig. 45.

Fig. 47 is another sectional'view taken line 47-47 of Fig. 45.

Fig. 48 is an interior view of one of `the drum cover .plates lookin yat the inside ci the same and showingtge details of constructionof the parts which retain the cus- 125 tomers window glass in position. Taken on I line 48-'48 of Fig. 25.

. A 9e is a detail view looking from one venter the to? i Fig. 50 illustrates' themetliod of supporting the socket for the Wiring cables which cover space.

Fig. l s ows a vertical sectional view of the iront drum cover and shovvs the support Fig, 26 showing the assembly of the front and rear covers to the pedestal portion of the scale.

Fig. 55 is a detail vieur ofthe platform and spider-end parts for coniiecting the same. Fig. 5G is a detail view of the rear cover removed from the scale und showin the ha t-I y oiiet locks which are used to secure the cover upon the pedestal.

Figs. ,57 and 58 views taken on line '57-57 and58-58 of Fig. 56.

Referring to the drawings, the framework proper of the mechamsm comprises three sections; first, a hase section; second, eipedestal or column section, and, third, a head or' Cil il 'y spider is also provided with a number of pcdestais 56 which support veriousparts of the drum supporting section. The base section is inthe form of a casting. This casting 1s inl the torni ot un open spider made so as to flic :is light as possible and in order to'provide for adequate stiil'ness it .is provided with suit-.

are respectively sectional front and lower segment of the circular portion 64 is made as a separate piece 69 (see Fig.

6). This separate piece is secured to the circular portion 64 in any suitable manner as by screws 7 O. This supplemental piece69 also'is utilized to supportv alever stop 71 (Figs. 2 and).

' The framework of the drum section of the machine comprises end castings 72, which end castings seat in the notched portion 68 of the transversememher 67. The end castii'igs are preferably secured in position by cap screws `73 (Figs. 2 and 8).

Base kZever' mechanism.

conventional construction. it includes ful-` crum pivots 76 and Vupwardly facing load pivots 77. It is also provided with a bi-metallic thermostat 78 of the usual form. A novel mountingtor this thermostat is pro- The hase lever (Figs. 4t vand-17) is of.

vided coinprising'a U-shaped member 79,'

' which member is rigidly'rivetedat its ends to the arms of the lever 7 5. From the thermostat -suitable .rods 8O connect to a single rod 81 .which extends rearwardly and at its end is providedovitli a slidev block 82 carrying a iiosepivot' 83;- The lever is further provided with a cushioned vstop 84 disposed in the top of the lever which cooperates with' e stop post 71 to limit the upward swing of the lever.

Post 71 is 4ritdjustaoly carried by'frame part 69'loeing threaded therein `and adapted to be locked after the proper adjustment is secured hy means of a lockout 7l. (Fig. 16). Access.

lto post 71 foredecting'vertical adjustment ahle stiteniug ribs such as those indicated at y is secured throughfdoor 237 (Fig. .26). Rest- 51. The hose casting is further provided# with pcdestals or chairs 52 (Figs.2 and 4') to receive the agate ulcrum hearings 55. y The Y lease housing end hase cover. The pedestal or column casting oie-the machineA is best shown ening rihsysuch 63.

.-ered'section the column section of the niai chine is stilistuntially circular as indicated at Mond this section is provided Withtwo shelves Gfand 66. Above the circular' por` tion there o., transverse head portion 67 which at its ends is provided with slotted portion 68 (Fig. 24) adapted to support the end @listings which in turn support the drum. Ylnusmiuthas certain' partsof the Weighing -rmechensin require insertioninto or removal "fromAtheiinterior of the column section .the

" 'ing upon .the load pivots 77 is a hearing frame 8510i conventional form. This he frame 85 carries an upwardly extending arm or column 86 which at its end carries a post 87 adapted to .receive a. check link 88 (see Figs. 2 and 19). The opposite end of this check link is cerriedupon a post S9 which is suitably mounted in the transverse head casting 67. Fig. 19 shows the manner in which the entire check and hearing ssemhly can he removed. lVlien it is desired to remove'tliese parts part 69 Figf) is first removed. `Check link 8S is' then disconnected and after this is done the entire hearing tramev and check column can he removed 'by displacing the saine :is shown, in F ig. 19: The bearing'fra'me 853 is provided witha number of 'posts or lknurled screws 93.'. The arrangement ofthe' hase lever system, hearing frame and the like is such that these `parte can rezidilyH hegenclosedin -a sheet metal base housing. y 'Posts 90v of the bearing trame project through the liuse housing or more exactly 4through the 

